Penetration detection device

Abstract

The utility model discloses a penetration detection device which comprises a detection container and a pump body, the detection container is provided with a detection inner cavity, a support used for placing a workpiece is arranged in the detection inner cavity, the detection inner cavity is provided with an opening capable of being opened and closed so that the workpiece can be placed in, and a connecting pipe is arranged between the pump body and the detection container which are connected through the connecting pipe. The interior of the connecting pipe communicates with the detection inner cavity, and the pump body can supply pressure to the detection inner cavity through the connecting pipe so as to increase the pressure of the detection inner cavity. When the device is used, the penetrating agent permeates into small opening defects on the surface of a workpiece under the joint cooperation of the high pressure effect in the cavity and the capillary effect, the penetrating capacity of the penetrating agent is improved through the high pressure in the cavity, the good permeating effect is achieved, and detection and use are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a penetration detection device. Background Art

[0002] Penetrant testing is a nondestructive testing technique based on the principle of capillary action, primarily used to detect open surface defects in non-porous metal or non-metallic components. During testing, a layer of penetrant is sprayed onto the workpiece's surface and allowed to stand for a period of time. Capillary action allows the penetrant to penetrate into the tiny open defects on the workpiece's surface. Excess penetrant is then wiped off, and a layer of developer is sprayed on. The developer adsorbs the penetrant onto the surface of the workpiece, creating a visible image of the defect in the developer on the workpiece's surface, allowing the shape, size, and location of the defect to be determined. Existing penetrant testing methods are relatively simple, relying solely on capillary action to penetrate open defects, resulting in poor penetration. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a penetration detection device that can increase the pressure of the detection cavity to improve the penetration ability of the penetrant, achieve better penetration effect, and facilitate detection and use.

[0004] According to the penetration detection device described in the embodiment of the present utility model, it includes a detection container and a pump body, the detection container has a detection inner cavity, a bracket for placing a workpiece is provided in the detection inner cavity, the detection inner cavity has an openable and closable opening for the workpiece to be placed therein, a connecting pipe is provided between the pump body and the detection container and is connected through the connecting pipe, the interior of the connecting pipe is connected to the detection inner cavity, and the pump body can supply pressure to the detection inner cavity through the connecting pipe to increase the pressure of the detection inner cavity.

[0005] According to the penetration detection device described in the embodiment of the present utility model, it has at least the following beneficial effects: when in use, the opening of the detection cavity is opened, the workpiece to be tested is fixed on the bracket, and then the detection cavity is filled with the penetrant, so that the workpiece to be tested is immersed in the penetrant, and then the opening of the detection cavity is closed, and pressure is supplied to the detection cavity through the pump body to increase the pressure in the detection cavity. Under the combined effect of the higher pressure in the cavity and the capillary action, the penetrant penetrates into the small opening defects on the surface of the workpiece. The high pressure in the cavity is used to improve the penetration ability of the penetrant, achieve a better penetration effect, and facilitate detection and use.

[0006] According to some embodiments of the present invention, the pump body can suck the detection inner cavity through the connecting tube to form a negative pressure in the detection inner cavity.

[0007] According to some embodiments of the present invention, the connecting pipe is provided with an opening and closing valve, and the opening and closing valve can connect or disconnect the detection cavity with the external atmosphere.

[0008] According to some embodiments of the present invention, the penetration detection device also includes a driver, the bracket is rotatably connected to the detection container, a linkage structure is provided between the driver and the bracket and the driver and the bracket are linked by the linkage structure, and the driver can drive the bracket to rotate relative to the detection container through the linkage structure.

[0009] According to some embodiments of the present invention, the linkage structure includes two magnetic turntables, one of which is fixedly connected to the bracket and located in the detection inner cavity, and the other is driven by the driver and located on the outside of the detection container. The two magnetic turntables can be magnetically coordinated and linked, so that when the magnetic turntable connected to the driver rotates, it can drive the magnetic turntable connected to the bracket to rotate.

[0010] According to some embodiments of the present invention, a clamp for fixing the workpiece is provided on the bracket.

[0011] According to some embodiments of the present invention, the detection container is provided with a vibration component, which can generate vibration and transmit the vibration to the detection inner cavity.

[0012] According to some embodiments of the present invention, the vibration component includes an ultrasonic generator, and the ultrasonic generator is provided on the wall of the detection container.

[0013] According to some embodiments of the present invention, the detection container is provided with a heating component, and the heating component is capable of heating the detection inner cavity.

[0014] According to some embodiments of the present invention, the heating assembly is disposed on the wall of the detection container and includes an electric heating rod for heating.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 This is a schematic structural diagram of a penetration detection device according to an embodiment of the present utility model;

[0018] Figure 2 for Figure 1Schematic diagram of a partial structural cross section of the detection container;

[0019] Figure 3 for Figure 2 A simplified schematic diagram of the cross-sectional structure of the magnetic turntable.

[0020] Reference numerals:

[0021] Detection container 100, detection inner cavity 101, bracket 110, fixture 111, vibration component 120, ultrasonic generator 121, heating component 130;

[0022] Pump body 200, connecting pipe 210, opening and closing valve 220, pressure gauge 230;

[0023] Driver 300 , reducer 310 , magnetic turntable 320 , and magnetic member 321 . DETAILED DESCRIPTION

[0024] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0025] In the description of the present invention, it should be understood that if orientation descriptions are involved, the orientations or positional relationships indicated, such as up, down, front, back, left, and right, are based on the orientations or positional relationships shown in the accompanying drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0026] In the description of this utility model, if the words "several", "greater than", "less than", "exceed", "above", "below", "within" etc. appear, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself.

[0027] If the first and second are described, they are only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0028] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0029] Reference Figure 1 and Figure 2 A penetration detection device includes a detection container 100 and a pump body 200. The detection container 100 has a detection inner cavity 101. The detection inner cavity 101 is provided with a bracket 110 for placing a workpiece. The detection inner cavity 101 has an openable and closable opening (not shown in the figure) for the workpiece to be placed therein. A connecting pipe 210 is provided between the pump body 200 and the detection container 100 and is connected by the connecting pipe 210. The interior of the connecting pipe 210 is connected to the detection inner cavity 101. The pump body 200 can supply pressure to the detection inner cavity 101 through the connecting pipe 210 to increase the pressure of the detection inner cavity 101.

[0030] It is understandable that if Figure 1 and Figure 2 As shown, when in use, the opening of the detection cavity 101 is opened, the workpiece to be tested is fixed on the bracket 110, and then the detection cavity 101 is filled with a penetrant so that the workpiece to be tested is immersed in the penetrant. Subsequently, the opening of the detection cavity 101 is closed, and pressure is supplied to the detection cavity 101 through the pump body 200 to increase the pressure of the detection cavity 101. Under the combined effect of the higher pressure in the cavity and the capillary action, the penetrant penetrates into the small opening defects on the surface of the workpiece. The high pressure in the cavity is used to improve the penetration ability of the penetrant, achieve a better penetration effect, and facilitate detection and use.

[0031] In actual application, the support 110 and the detection container 100 can be detachably connected. When used for detection, the support 110 can be removed through the opening of the detection cavity 101. After the workpiece to be detected is fixed on the support 110, the support 110 and the workpiece to be detected are placed into the detection cavity 101 together with the support 110, and the support 110 and the detection container 100 are connected. Alternatively, when used for detection, the support 110 can be kept intact and the workpiece to be detected can be placed into the detection cavity 101 through the opening of the detection cavity 101 and removed. Fixed on the bracket 110; the penetrant can be injected into the detection cavity 101 through the opening of the detection cavity 101, or the detection container 100 is connected to an infusion tube for conveying the penetrant, so as to inject the penetrant into the detection cavity 101 through the infusion tube; the detection container 100 can be movably connected to a door body or a cover body, or detachably connected to the door body or the cover body, and the opening of the detection cavity 101 is closed by using the door body or the cover body to realize the opening and closing of the opening of the detection cavity 101, which can be set accordingly according to actual use needs.

[0032] In some embodiments, the pump body 200 can pump suction into the detection cavity 101 through the connecting tube 210 to form a negative pressure in the detection cavity 101 .

[0033] It is understandable that if Figure 1 and Figure 2As shown, the pump body 200 is specifically a dual-purpose vacuum pump, which can pump gas into the detection cavity 101 to increase the pressure of the detection cavity 101, and can also vacuum the detection cavity 101 to form a negative pressure in the detection cavity 101. During detection, the pump body 200 first supplies pressure to the detection cavity 101 to improve the penetration ability of the penetrant and achieve a better penetration effect. After the workpiece has been infiltrated for a certain period of time, the workpiece is taken out and the excess penetrant is removed, and the detection container 100 discharges the penetrant in the detection cavity 101. During development, the developer is applied to the surface of the workpiece after the infiltration treatment, and then the workpiece with the developer applied is placed in the detection cavity 101. The detection cavity 101 is closed, and the detection cavity 101 is vacuumed by the pump body 200 to form a negative pressure in the detection cavity 101. The capillary action principle and the negative pressure in the detection cavity 101 are used to adsorb the penetrant in the open defect to the surface of the inspected workpiece, thereby producing a clearly visible defect display image. The negative pressure in the cavity is used to enhance the effect of the penetrant being adsorbed from the defect, thereby improving the detection sensitivity and facilitating detection use.

[0034] In actual application, in addition to the above structure, two pump bodies 200 can also be provided, one of which is used to supply pressure to the detection cavity 101 to increase the pressure of the detection cavity 101, and the other pump body 200 is used to suck the detection cavity 101 to form a negative pressure in the detection cavity 101. The specific settings can be made according to actual use needs. Since the specific structure and principle of the dual-purpose vacuum pump of the embodiment of the utility model are known to ordinary technicians in this field, they will not be described in detail here.

[0035] Furthermore, the connecting pipe 210 is provided with an opening and closing valve 220 , and the opening and closing valve 220 can connect or disconnect the detection cavity 101 with the external atmosphere.

[0036] It is understandable that if Figure 1 and Figure 2 As shown, the connecting pipe 210 is provided with an opening and closing valve 220. When the pump body 200 supplies pressure or suction to the detection cavity 101, the opening and closing valve 220 remains closed. After the workpiece in the detection cavity 101 completes the infiltration treatment and the imaging treatment, the opening and closing valve 220 on the connecting pipe 210 can be opened to connect the detection cavity 101 with the external atmosphere, thereby facilitating the detection cavity 101 to return to normal pressure state for easy use.

[0037] In actual application, the specific structure of the opening and closing valve 220 can be set accordingly according to actual use needs and is not limited here.

[0038] Further, if Figure 1As shown, a pressure gauge 230 is provided on the connecting tube 210 for displaying the internal pressure of the connecting tube 210. When in use, since the interior of the connecting tube 210 is connected to the detection cavity 101, the user can obtain the pressure conditions of the detection cavity 101 through the pressure gauge 230, which is convenient for controlling the progress of the detection process.

[0039] In some embodiments, the penetration detection device also includes a driver 300, and the bracket 110 is rotatably connected to the detection container 100. A linkage structure is provided between the driver 300 and the bracket 110 and the drivers 300 and the bracket 110 are linked through the linkage structure. The driver 300 can drive the bracket 110 to rotate relative to the detection container 100 through the linkage structure.

[0040] It is understandable that if Figure 1 and Figure 2 As shown, the bracket 110 is rotatably connected to the detection container 100, and the driver 300 is a motor. Its power output end is connected to the reducer 310 to reduce its output speed. The output end of the reducer 310 is linked to the bracket 110 through a linkage structure, so that the linkage structure can drive the bracket 110 to rotate relative to the detection container 100. During detection, the bracket 110 can be driven to rotate, thereby driving the inspected workpiece on it to rotate. On the one hand, it can stir the penetrant in the detection cavity 101 and increase its fluidity. On the other hand, the flipping of the bracket 110 can be used to make different surfaces of the workpiece face upward, so that the opening of the defect faces upward, which is conducive to the penetration of the penetrant and improves the penetration effect of the penetrant in the defect. In actual application, the specific structure of the driver 300 can be set accordingly according to actual use needs.

[0041] Furthermore, the linkage structure includes two magnetic turntables 320, one of the two magnetic turntables 320 is fixedly connected to the bracket 110 and is located in the detection cavity 101, and the other is driven by the driver 300 and is located on the outside of the detection container 100. The two magnetic turntables 320 can be magnetically coordinated and linked, so that when the magnetic turntable 320 connected to the driver 300 rotates, it can drive the magnetic turntable 320 connected to the bracket 110 to rotate.

[0042] It is understandable that if Figure 1 、 Figure 2 and Figure 3As shown, one of the two magnetic turntables 320 is fixedly connected to the bracket 110 and located in the detection cavity 101, while the other is driven by the driver 300 and located outside the detection container 100. Each magnetic turntable 320 is provided with a plurality of magnetic members 321 distributed around the rotation axis. The two magnetic turntables 320 can be magnetically matched via their respective magnetic members 321, achieving a linkage between the two, thereby enabling the driver 300 to drive the bracket 110 to rotate. By adopting this linkage structure, the detection container 100 does not need to be provided with a rotating shaft passing through the inside and outside, and the gap on the detection container 100 can be reduced, thereby ensuring the airtightness of the detection container 100 and facilitating pressurization and vacuuming. In actual application, the specific structure of the magnetic turntable 320 can be set accordingly according to actual use needs.

[0043] In some embodiments, a fixture 111 for fixing the workpiece is provided on the bracket 110. It is understood that Figure 2 As shown, the bracket 110 is provided with a plurality of clamps 111. When in use, the clamps 111 can be used to secure the workpiece to the bracket 110 to prevent it from loosening and facilitate use. In actual application, in addition to the above structure, a clamping structure can be provided to clamp the workpiece to the bracket 110, or a magnetic structure can be provided to magnetically attract the workpiece to the bracket 110 to achieve the fixation of the workpiece. The specific configuration can be determined according to actual use needs. Since the specific structure and principle of the clamps 111 in the embodiment of the utility model are well known to those skilled in the art, they will not be described in detail here.

[0044] In some embodiments, the detection container 100 is provided with a vibration component 120, which can generate vibration and transmit the vibration to the detection cavity 101. It is understood that Figure 1 and Figure 2 As shown, during detection, vibration is generated by the vibration component 120 and transmitted to the detection cavity 101. Vibration can facilitate the discharge of air and impurities at the defects of the workpiece, and can also enhance the penetration effect of the penetrant at the defects, making it easier to use for detection.

[0045] Specifically, the vibration component 120 includes an ultrasonic generator 121, and the ultrasonic generator 121 is provided on the wall of the detection container 100. It is understood that, if Figure 1 and Figure 2As shown, multiple ultrasonic generators 121 are provided and spaced apart along the wall of the detection container 100. The ultrasonic generators 121 generate ultrasonic vibrations and transmit them to the detection cavity 101. This simple structure makes it easy to use. In practical applications, in addition to the ultrasonic generators 121, the vibration assembly 120 may also include a mechanical vibrator such as a vibration motor. The specific configuration can be tailored to actual needs. Since the specific structure and principles of the ultrasonic generators 121 in this embodiment of the present invention are well known to those skilled in the art, they will not be described in detail here.

[0046] In some embodiments, the detection container 100 is provided with a heating component 130, which can heat the detection cavity 101. Figure 1 and Figure 2 As shown, during detection, the detection cavity 101 is heated by the heating component 130 to increase the temperature of the penetrant and increase its molecular thermal motion, so as to enhance the penetration effect of the penetrant into the defect and facilitate detection.

[0047] Specifically, the heating assembly 130 is disposed on the wall of the detection container 100 and includes an electric heating rod (not shown) for heating. It is understood that the electric heating rod is attached to the wall of the detection container 100. During use, the electric heating rod generates heat and transfers heat to the detection cavity 101 to achieve the purpose of heating the penetrant in the detection cavity 101. Its structure is simple and easy to use. In actual application, in addition to the electric heating rod, the heating assembly 130 may also include a burner to heat the detection container 100 by combustion heating, or provide a heat exchange flow channel to utilize a heat medium to exchange heat with the penetrant in the detection cavity 101 to heat the penetrant in the detection cavity 101. The specific setting can be corresponding to actual use needs.

[0048] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A penetration detection device, characterized in that: include: An inspection container, wherein the inspection container has an inspection inner cavity, a support for placing a workpiece is provided in the inspection inner cavity, and the inspection inner cavity has an openable and closable opening for placing the workpiece; A pump body is provided between the pump body and the detection container and is connected through the connecting pipe. The interior of the connecting pipe is connected to the detection cavity. The pump body can supply pressure to the detection cavity through the connecting pipe to increase the pressure of the detection cavity.

2. The penetration detection device according to claim 1, characterized in that The pump body can suck the detection inner cavity through the connecting tube to form a negative pressure in the detection inner cavity.

3. The penetration detection device according to claim 2, characterized in that: The connecting pipe is provided with an opening and closing valve, and the opening and closing valve can connect or disconnect the detection cavity with the external atmosphere.

4. The penetration detection device according to claim 1, characterized in that It also includes a driver, the bracket is rotatably connected to the detection container, a linkage structure is provided between the driver and the bracket and the driver and the bracket are linked by the linkage structure, and the driver can drive the bracket to rotate relative to the detection container through the linkage structure.

5. The penetration detection device according to claim 4, characterized in that: The linkage structure includes two magnetic turntables, one of which is fixedly connected to the bracket and located in the detection cavity, and the other is driven by the driver and located on the outside of the detection container. The two magnetic turntables can be magnetically coordinated and linked, so that when the magnetic turntable connected to the driver rotates, it can drive the magnetic turntable connected to the bracket to rotate.

6. The penetration detection device according to claim 4, characterized in that: The bracket is provided with a clamp for fixing the workpiece.

7. The penetration detection device according to claim 1, characterized in that: The detection container is provided with a vibration component, which can generate vibration and transmit the vibration to the detection inner cavity.

8. The penetration detection device according to claim 7, characterized in that: The vibration component includes an ultrasonic generator, and the ultrasonic generator is arranged on the wall of the detection container.

9. The penetration detection device according to claim 1, characterized in that: The detection container is provided with a heating component, and the heating component can heat the detection inner cavity.

10. The penetration detection device according to claim 9, characterized in that: The heating component is arranged on the wall of the detection container and includes an electric heating rod for heating.

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